sys/net/loramac: various improvements
sys/net/loramac: various improvements

- add missing typedef enums
- add default device class parameter

roberthartung/RIOT,kbumsik/RIOT,mfrey/RIOT,smlng/RIOT,avmelnikoff/RIOT,kaspar030/RIOT,ant9000/RIOT,lazytech-org/RIOT,aeneby/RIOT,smlng/RIOT,kaspar030/RIOT,neiljay/RIOT,biboc/RIOT,cladmi/RIOT,josephnoir/RIOT,gebart/RIOT,Josar/RIOT,kaspar030/RIOT,authmillenon/RIOT,smlng/RIOT,aeneby/RIOT,yogo1212/RIOT,josephnoir/RIOT,kYc0o/RIOT,A-Paul/RIOT,LudwigKnuepfer/RIOT,OTAkeys/RIOT,LudwigKnuepfer/RIOT,OlegHahm/RIOT,OTAkeys/RIOT,miri64/RIOT,A-Paul/RIOT,neiljay/RIOT,avmelnikoff/RIOT,kYc0o/RIOT,toonst/RIOT,RIOT-OS/RIOT,kYc0o/RIOT,LudwigKnuepfer/RIOT,toonst/RIOT,LudwigOrtmann/RIOT,A-Paul/RIOT,roberthartung/RIOT,roberthartung/RIOT,LudwigKnuepfer/RIOT,avmelnikoff/RIOT,ant9000/RIOT,mtausig/RIOT,miri64/RIOT,josephnoir/RIOT,BytesGalore/RIOT,OTAkeys/RIOT,yogo1212/RIOT,yogo1212/RIOT,mfrey/RIOT,ant9000/RIOT,authmillenon/RIOT,kYc0o/RIOT,A-Paul/RIOT,x3ro/RIOT,OlegHahm/RIOT,mfrey/RIOT,x3ro/RIOT,RIOT-OS/RIOT,roberthartung/RIOT,aeneby/RIOT,cladmi/RIOT,LudwigOrtmann/RIOT,neiljay/RIOT,Josar/RIOT,authmillenon/RIOT,mtausig/RIOT,RIOT-OS/RIOT,kaspar030/RIOT,OlegHahm/RIOT,miri64/RIOT,x3ro/RIOT,basilfx/RIOT,cladmi/RIOT,Josar/RIOT,RIOT-OS/RIOT,LudwigOrtmann/RIOT,rfuentess/RIOT,neiljay/RIOT,mtausig/RIOT,cladmi/RIOT,jasonatran/RIOT,roberthartung/RIOT,yogo1212/RIOT,biboc/RIOT,kbumsik/RIOT,lazytech-org/RIOT,Josar/RIOT,miri64/RIOT,gebart/RIOT,OlegHahm/RIOT,rfuentess/RIOT,LudwigOrtmann/RIOT,toonst/RIOT,x3ro/RIOT,A-Paul/RIOT,kYc0o/RIOT,biboc/RIOT,BytesGalore/RIOT,smlng/RIOT,LudwigOrtmann/RIOT,OlegHahm/RIOT,kbumsik/RIOT,biboc/RIOT,josephnoir/RIOT,neiljay/RIOT,RIOT-OS/RIOT,ant9000/RIOT,BytesGalore/RIOT,avmelnikoff/RIOT,x3ro/RIOT,aeneby/RIOT,gebart/RIOT,basilfx/RIOT,yogo1212/RIOT,authmillenon/RIOT,mtausig/RIOT,jasonatran/RIOT,lazytech-org/RIOT,aeneby/RIOT,LudwigOrtmann/RIOT,toonst/RIOT,toonst/RIOT,gebart/RIOT,authmillenon/RIOT,basilfx/RIOT,avmelnikoff/RIOT,ant9000/RIOT,BytesGalore/RIOT,OTAkeys/RIOT,authmillenon/RIOT,miri64/RIOT,mfrey/RIOT,yogo1212/RIOT,lazytech-org/RIOT,OTAkeys/RIOT,jasonatran/RIOT,jasonatran/RIOT,Josar/RIOT,gebart/RIOT,cladmi/RIOT,basilfx/RIOT,lazytech-org/RIOT,kbumsik/RIOT,josephnoir/RIOT,BytesGalore/RIOT,smlng/RIOT,mtausig/RIOT,rfuentess/RIOT,LudwigKnuepfer/RIOT,rfuentess/RIOT,basilfx/RIOT,rfuentess/RIOT,kaspar030/RIOT,jasonatran/RIOT,mfrey/RIOT,kbumsik/RIOT,biboc/RIOT